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SAMSUNG Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SAMSUNGLT22A550
When turned on, it turns off immediately and is like rebooting into the Samsung "logo"Voltage failing that comes from the power supply to the main boardFor the second time I got this defect and almost ate bronha, the defect is in the power cable socket that goes from the power supply to the main board, if you remove the connector on the power supply you will see that it has been heated and this causes connection failure/bad contact. In both cases I replaced the complete cable.MIGUELTV
SAMSUNG LN32B460B2MXZD LN37B450C4MXZD
Does not turn on, blinking stand-byIc5003 with leak and in my case the capacitor c8502 shorted on the main PCIOne card replaces the other (main PCI)Airton Filgueira
SAMSUNG LN37B450C4MXZD
Does not turn on, blinking stand-byIc5003 with leak and in my case the capacitor c8502 shorted on the main PCIExchanging themAirton Filgueira
SAMSUNG LN32B460B2MXZD
Does not turn on, blinking stand-byIc5003 with leak and in my case the capacitor c8502 shortedExchanging themAirton Filgueira
SAMSUNGDVD-R155
Turns on but tray doesn't open, just blinks open. Does not reproduce image via HDMI or RCA.I took the tip from my friend "littlecarlos" and went straight to the 1000uf/10v capacitors. I replaced the 3 ppcf1, ppcf2 and ppcd1 and also installed 3 1000uf/16v motherboards. It worked perfectly!! thanks for the help friendFirst thing, replace the 3 capacitors without measuring. In my case it was just that.RYK
SAMSUNGUN32J4300AG
LED power supply changedResistors r300 three in parallel close to q1401Replace with three 1r0 resistorsMultimarcas/Acarí
SAMSUNGUN50NU7100G
Flickering image with horizontal lines heating up d001/002 on pci driverIsolating trails 8 to 16 from left to right on the left flat worked perfectly.Francisco Medeiros/ Barbacena MG
SAMSUNG LN32B530
TV turns on after a while, the backlight does not turn on and only the sound remainsPut a lower value resistor on the 1m rp812, in my case I put a 500k resistor and it was fineOdair SOS ASSIST
SAMSUNG 21K40MQ
Access led when pressing the power key the led does not turn off and the power supply does not start due to the 4 voltages on pin 4 of the ic802noIc201sReplace the assistant and the TV will work normallySinailson furtado
SAMSUNGPL43F4000
Sometimes it turns on, sometimes it doesn't. 5v pulsing, but when the power supply heated up the 5v stabilized and the TV was able to turn on.In my case I had already changed the c804, c805 and it didn't solve the problem. The defect was in the 150k smd resistors r827, 828, 829, 830, 831Remove, scrape off the glue and weld with the print side down.Régis
SAMSUNGUN40EH5000G
Doesn't startPower supply oscillating - 13v shortedReplace dm858 and dm859 - in my case I put an mbrf20150ct that I took from another boardRUBERVAL SBC
SAMSUNGUN40FH6203G
LEDs fluctuating brightness.Just one touch of the VR850 trimpot on the power supply board.Persio (TVCompany)
SAMSUNGUN46F6400
Power supply relay knocking, tv restartingOne of the likely causes could be the c.i. LED driver. To find out if the defect is in one of the two, simply measure the voltage in diodes d9001 and d9002, if tsound is a high level in either of them, the defect is in the c.i. corresponding to the diode in question. if tsound is a high level in the d9001, the defect is the ic9101 and if tsound is a high level in the d9002, the defect is the ic9201.Replace ic9101 or ic9201NARDINHO ALFENAS
SAMSUNGUN26C4000 UN32C4000 BN44-00349
TV turns on, has sound, but backlight doesn't work.Um801s cracked, zdm801 shorted, qm801 shorted, pc804s leak, db804 open.Replace mentioned components.electronicssupplyparts - Gramado/RS
SAMSUNGUN32F4200
LEDs light up but no imageReplacement of capacitor cd15 with short in v-conpresto
SAMSUNGUN46F6400
Power supply relay knocking, tv restartingOne of the likely causes could be the c.i. LED driver. To find out if the defect is in one of the two, simply measure the voltage in diodes d9001 and d9002, if tsound is a high level in either of them, the defect is in the c.i. corresponding to the diode in question. if tsound is a high level in the d9001, the defect is the ic9101 and if tsound is a high level in the d9002, the defect is the ic9201.Replace ic9101 or ic9201NARDINHO ALFENAS
SAMSUNGCL21K40MQ
Turns on with a dark stripe in the corner, pulling sideways to close the image and turns off, horizontal synchronizationChange capacitor cr404s on the flyback sideDj pituka
SAMSUNGUN50NUXXXX
No imageChange the LEDs, TV with many LED burning routines and also with cracks or burned spots on the acrylicChanging the LEDs, acrylic and modifying the power supply to lower the LED voltagesAlex Lopes <small>This email address is being protected from spambots. You need JavaScript enabled to view it.</small>
SAMSUNGUN32D5000
It does not turn on, the standby LED does not light up, this only happens at 220v voltage, because at 110 volts it works correctlyCm806, with low capacity (100uf/25v), on the primary power supplyReplace cm806MIGUELTV
SAMSUNGLM40B530P2MXZD
LM40B530P2MXZD
Turns on but no image or sound appearsDefective boardCleber